Nitrogen substituted phosphinimine ligand

Details Nitrogen substituted phosphinimine ligand Nitrogen substituted phosphinimine ligand

C - Chemistry, Metallurgy

08

F

C08F 4/64 (2006.01) C08F 10/02 (2006.01) C08F 4/659 (2006.01) C08F 110/02 (2006.01) C08F 210/16 (2006.01)

Patent

CA 2254841

An organometallic complex of a group 4 metal having a cyclopentadienyl ligand and a heterosubstituted phosphinimine ligand is a catalyst component for olefin polymerization. The heterosubstituted phosphinimine ligand may be conveniently and inexpensively synthesized using readily available precursors which are comparatively non-pyrophoric. The resulting catalysts are highly active for ethylene copolymerization, particularly when activated with an alumoxane or ionic activator.

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